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Proceedings Paper

Design and evaluation of multipoint-to-point multicast flow control
Author(s): W. Melody Moh; Yin Chen
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Paper Abstract

Multipoint communication has been an increasingly focused topic in computer communication networks, including both the Internet and the ATM networks. We have previously presented, analyzed, and evaluated new point-tomultipoint ABR flow control algorithms. In this paper, we focus on multipoint-to-point flow control. As the major objective of ABR service is to provide minimum-loss, fair service to data traffic, an effective merge-point scheme for multipoint-to-point flow control should guarantee some suitable fairness. In this paper, we first examine the "essential fairness" concept proposed by Wang and Schwartz for point-to-multipoint flow control in the Internet. We extend and enhance the concept to the multipoint-to-point ABR flow control. A general algorithm guaranteeing essential fairness is presented, with a detailed implementation on top of the ERICA unicast algorithm proposed by Jam, et. al. The general algorithm may be used for a wide range of fairness specifications to accommodate various bandwidth requirement from unicast or multicast sources of different application streams. Three major variations of the general algorithm are presented. These three schemes are simulated and evaluated, and compared with an existing scheme proposed by Ren, Siu, and Suzuki. Simulation results show that the proposed merge-point algorithm achieves, within short transient time, max-mm fairness based on different weights given to individual sources or sessions, or according to various specifications of fairness. The fairness concept and the general algorithm presented here may be readily applied to other high-speed networks such as the Next Generation Internet and Wireless ATM, and to different multicast settings such as point-to-multipoint and multipoint-to-multipoint.

Keywords: ATM network, ABR traffic, flow control, multicast

Paper Details

Date Published: 7 October 1998
PDF: 12 pages
Proc. SPIE 3530, Performance and Control of Network Systems II, (7 October 1998); doi: 10.1117/12.325860
Show Author Affiliations
W. Melody Moh, San Jose State Univ. (United States)
Yin Chen, San Jose State Univ. and IBM Corp. (United States)

Published in SPIE Proceedings Vol. 3530:
Performance and Control of Network Systems II
Wai Sum Lai; Robert B. Cooper, Editor(s)

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